42. Effect of Hyper-coal addition to coal on CO_2 reactivity of coke

Abstract

Hyper-coal (HPC), which is an ash free coal, can be produced by thermal extractions with organic solvents and separation from the insoluble residue. We have made a study to use HPC as a coke making material, and measured CO_2 reactivity of coke samples containing the HPC. The results were as follows. The addition of HPC into coal charge deteriorated coke reactivity, and improved coke strength after-CO_2 reaction.